U.S. researchers say they have successfully tested a malaria vaccine on a small group of volunteers. The researchers say the vaccine is safe, that it caused a response in the volunteers' immune systems and that it protects against malaria infection in healthy adults.

Apple has pulled two popular photography apps from the iOS app store, reportedly because the company found it too easy to find nude images — though, notably, not pornographic ones. 500px, whose apps were removed, is resubmitting them with adjustments, but Apple is already being criticized for this seemingly arbitrary policy.

Deep Space Industries' backers say that their newly revealed plan to seek out and dig into near-Earth asteroids has already attracted interest and investors — but they also admit they're looking for much more.

"We have some investors on board," the company's CEO, David Gump, told journalists during Tuesday's briefing at California's Santa Monica Museum of Flying, "and one reason for having this press conference is to become findable by additional investors."

A new study from researchers at Tyndall National Institute and the National University of Singapore shows that subtle changes in the intermolecular van der Waals interactions in the active component of a molecular diode can improve the device performance by more than a factor of ten.

Researchers in Japan said Wednesday they have succeeded in growing human kidney tissue from stem cells for the first time in a potential breakthrough for millions with damaged organs who are dependent on dialysis.

Signs of the most recent life on Mars may have sprung up from underground. Because they would have been protected from harsh conditions on the surface, such as radiation, pockets of underground water may be whereMartian life existed most recently.